minor: disable freedomsponsors.org as it return 502 error
minor: disable freedomsponsors.org as it return 502 error

sabaka/checkstyle,romani/checkstyle,romani/checkstyle,romani/checkstyle,rnveach/checkstyle,liscju/checkstyle,checkstyle/checkstyle,romani/checkstyle,rnveach/checkstyle,rnveach/checkstyle,sabaka/checkstyle,jonmbake/checkstyle,rnveach/checkstyle,jochenvdv/checkstyle,jonmbake/checkstyle,rnveach/checkstyle,checkstyle/checkstyle,checkstyle/checkstyle,romani/checkstyle,checkstyle/checkstyle,checkstyle/checkstyle,jochenvdv/checkstyle,checkstyle/checkstyle,liscju/checkstyle,jochenvdv/checkstyle,sabaka/checkstyle,jonmbake/checkstyle,liscju/checkstyle,rnveach/checkstyle,romani/checkstyle